Services in Southern California for over 53 years！

We are proud to announce our 53rd anniversary in 2026! Since 1973 we’ve served the community as a full-service certified public accounting and business advisory firm.

Services in Southern California for over 53 years！

We go beyond traditional services to provide proactive solutions and the highest level of service and experience in audit and assurance, business advisory services, and tax and accounting.

Services in Southern California for over 53 years！

Lan & Song CPAs is to provide professional services that exceed your expectations, that are timely, high-quality, personalized, and directed at improving your bottom-line results.

Services in Southern California for over 53 years！

At Lan & Song CPAs, we believe that the best tax strategy is achieved through year-long planning alongside your tax adviser.

Services in Southern California for over 53 years！

Lan & Song CPAs can assist busy executives with these challenges and opportunities to promote increased efficiency, effectiveness and profitability.

Our Specialty

Escrow Company

Marketing audit & compliance for CA-licensed escrow companies under DRE & DFPI regulations.

Real Estate

Cost segregation, 1031 exchange, and comprehensive real estate tax planning strategies.

Cross-Border Business

International tax planning, FBAR reporting, and foreign income compliance.

Non-Profit Organization

501(c)(3) compliance, Form 990 preparation, and grant management advisory.

Professional Services

Full-service bookkeeping, payroll, HR consulting & business operations support.

New Immigrants

Year-round tax planning, credits & incentives for businesses and individuals.

Our Team

Christopher Lan, CPA

"A QUOTE"

Jerry Lan, CPA

"A QUOTE"

Steve Song, CPA

"A QUOTE"

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